222002202121 has 12 divisors (see below), whose sum is σ = 262767349312. Its totient is φ = 183725955504.

The previous prime is 222002202119. The next prime is 222002202133. The reversal of 222002202121 is 121202200222.

It is not a de Polignac number, because 222002202121 - 2¹ = 222002202119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222002202095 and 222002202104.

It is not an unprimeable number, because it can be changed into a prime (222002202421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18849405 + ... + 18861178.

Almost surely, 2^222002202121 is an apocalyptic number.

It is an amenable number.

222002202121 is a deficient number, since it is larger than the sum of its proper divisors (40765147191).

222002202121 is an equidigital number, since it uses as much as digits as its factorization.

222002202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37710648 (or 37710619 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222002202121 its reverse (121202200222), we get a palindrome (343204402343).

The spelling of 222002202121 in words is "two hundred twenty-two billion, two million, two hundred two thousand, one hundred twenty-one".